When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: rbkomar/Getty Images Earth isn't alone in orbiting our sun; it's joined by a bunch of ...

The sun is much more than a bright light in the sky. It's a giant ball of burning gas that holds our cosmic neighborhood together and without it, there would be no life on Earth. Our home star is also ...

In this quiz, you'll test your cosmic knowledge by matching each moon to the planet it calls home. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...